|
|
|
Registros recuperados: 107 | |
|
| |
|
| |
|
| |
|
| |
|
|
ARAUJO, H. J. B. de; CORREIA, M. F.; SIVIERO, A.; MACEDO, P. E. F. de; OLIVEIRA, L. C. de. |
Por meio de procedimentos e técnicas de restauração que considerem a escolha apropriada das espécies (principalmente quanto às características econômicas e ambientais), florestas exauridas de espécies comerciais podem ser conduzidas de maneira a reverter, ou minimizar, os efeitos da exploração seletiva que modificou sua estrutura original. Além disso, é fundamental que a condução posterior aos procedimentos de restauração seja feita de modo a garantir a sustentabilidade das espécies em florestas de produção. Este trabalho objetiva descrever os métodos utilizados, as etapas iniciais de implantação, a definição de espécies aptas e os resultados preliminares de plantios de enriquecimento com espécies florestais madeireiras de alto valor comercial em áreas de... |
Tipo: Circular Técnica (INFOTECA-E) |
Palavras-chave: Manejo florestal; Manejo seletivo; Xapuri (AC); Brasiléia (AC); Rio Branco (AC); Acre; Amazonia Occidental; Amazônia Ocidental; Western Amazon; Esploração da madeira; Madera tropical; Explotación forestal; Regeneración artificial.; Manejo forestal; Impacto ambiental; Administração florestal; Regeneração artificial; Essência florestal.; Forest management; Logging; Tropical wood; Environmental impact; Artificial regeneration.. |
Ano: 2013 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/982061 |
| |
|
| |
|
|
FIGUEIREDO, E. O.; HALK, T. de M.; PAPA, D. de A.; CUNHA, R. M da; CASSOL, H. L. G.. |
O planejamento da exploração florestal em florestas tropicais, realizada com técnicas de precisão recomendadas pelo Modelo Digital de Exploração Florestal (Modeflora), permite significativas vantagens. Porém, para que o planejamento da exploração florestal seja executado com precisão e agilidade pelas equipes de campo, é necessário que todas as informações estejam consolidadas num mapa dinâmico. Para que todas as informações fiquem consolidadas num único conjunto de mapas dinâmicos, há necessidade de compilar os dados em um formato de arquivo digital (IMG), o qual é reconhecido pelos receptores GPS e navegadores automotivos. As informações permanecem armazenadas num cartão de memória (SD ou microSD) e o aparelho de GPS fica com memória livre para a coleta... |
Tipo: Circular Técnica (INFOTECA-E) |
Palavras-chave: Manejo florestal; Manejo de precisão; Geotécnica; Biometria florestal; Sistema de posicionamento global; Forest biometry; Biometría forestal; Modelagem 3D; Modeflora; Sistemas de posicionamiento global; Tecnología geoespacial; Teledetección.; Agricultura de precisión; Geoespatial technology; Inventario forestal; Manejo forestal; Sistemas de información geográfica; Administração florestal; Inventário florestal; Sensoriamento remoto.; Sistema de informação geográfica; Agricultura de precisão; Forest management; Precision agriculture; Geographic information systems; Global positioning systems; Remote sensing.; Forest inventory. |
Ano: 2010 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/877753 |
| |
|
|
Anderson, William F. A.; University of New Brunswick, Faculty of Forestry and Environmental Management; banderso@unb.ca; MacLean, David A.; University of New Brunswick, Faculty of Forestry and Environmental Management; macleand@unb.ca. |
In a 15-year case study, we used the multiple streams approach (MSA) and the advocacy coalition framework (ACF) to examine a controversial industry-led proposal for increased harvest of Crown forests in New Brunswick, Canada, in an adversarial policy subsystem. Study participants were queried on their perceptions of policy problems and reasons for community attention, the relationship between science and policy, and whether policy decisions were consistent with scientific understanding. Thematic analysis was used to examine interview data for evidence of Kingdon’s MSA and Sabatier’s ACF. During public hearings of a Legislative Select Committee on Wood Supply, two competing policy alternatives emerged. The first, put forward by the... |
Tipo: Peer-Reviewed Reports |
Palavras-chave: Crown forests; Forest management; Forest policy; Government agenda; Jaakko Pö Yry report; Policy; Policy-oriented learning; Policy windows. |
Ano: 2015 |
|
| |
|
|
Edwards, David M.; Forest Research; david.edwards@forestry.gsi.gov.uk; Jay, Marion; Institute of Forest and Environmental Policy, Albert-Ludwigs University; Marion.Jay@ifp.uni-freiburg.de; Jensen, Frank S.; Forest & Landscape, Faculty of Life Sciences, University of Copenhagen; fsj@life.ku.dk; Lucas, Beatriz; Centre Tecnologic Forestal de Catalunya (CTFC); beatriz.lucas@ctfc.es; Marzano, Mariella ; Forest Research; mariella.marzano@forestry.gsi.gov.uk; Peace, Andrew; Forest Research; andrew.peace@forestry.gsi.gov.uk; Weiss, Gerhard; Central East-European Regional Office of the European Forest Institute (EFICEEC); University of Natural Resources and Life Sciences (BOKU); gerhard.weiss@boku.ac.at. |
A Delphi survey involving experts in forest preference research was carried out to derive scores for the recreational value of 240 forest stand types across Europe. The survey was organized around four regional panels: Great Britain, Nordic Region, Central Europe, and Iberia. In each region, 60 forest stand types were defined according to five forest management alternatives (FMAs) on a continuum of management intensity, four phases of development (establishment, young, medium, and adult), and three tree species types (conifer, broadleaved, and mixed stands of conifer and broadleaved). The resulting scores were examined using conjoint analysis to determine the relative importance of the three structural attributes (FMA, phase of development, and tree... |
Tipo: Peer-Reviewed Reports |
Palavras-chave: Delphi; Europe; Forest management; Public preference; Recreation; Structural attribute. |
Ano: 2012 |
|
| |
|
| |
|
| |
|
| |
|
|
Graham, Russell T; USDA Forest Service, Rocky Mountain Research Station; rgraham/rmrs_moscow@fs.fed.us; Jain, Theresa B; USDA Forest Service, Rocky Mountain Research Station; tjain/rmrs_moscow@fs.fed.us. |
Boreal forests, which are often undeveloped, are a major source of raw materials for many countries. They are circumpolar in extent and occupy a belt to a width of 1000 km in certain regions. Various conifer and hardwood species ranging from true firs to poplars grow in boreal forests. These species exhibit a wide range of shade tolerance and growth characteristics, and occupy different successional positions. The climate is subarctic, with short growing seasons, and the soils are shallow. Both wildfires and timber harvesting play an important role in shaping the structure and composition of boreal forests. Both uneven-aged and even-aged silvicultural systems can be used to produce commercial harvests, but systems can also be designed to meet a variety of... |
Tipo: Peer-Reviewed Reports |
Palavras-chave: Boreal forest; Even-aged stands; Forest composition; Forest management; Forest structure; Global timber markets; Silvicultural systems; Subarctic; Uneven-aged stands.. |
Ano: 1998 |
|
| |
|
|
Condé, Tiago Monteiro; Tonini, Helio; Silva, Fernando da; Barni, Paulo Eduardo; Souza Celes, Carlos Henrique; Araujo, Raquel Fernandes de; Assis Campos, Moacir Alberto; Carneiro de Miranda, Dirceu Lucio. |
Geographic information system (GIS) applied to forest analysis permit the recognition and analysis of spatial patterns of species in two and three dimensional. The aim of this study to demonstrate the efficiency of cartesian and spatial coordinates method (MCCE), method of correcting UTM coordinates of trees location in accordance with the location of field or Cartesian (X ,Y), combined with natural neighbor index (ANND) in recognition and analysis of spatial distribution patterns of four commercial timber species in forest management in Caracaraí, Roraima State, Brazil. Simulations were performed on 9 ha, divided into 100 plots of 100 m2 each. Collected data were DBH > 10 cm, commercial and total heights, cartesian coordinates (X,Y) and spatial... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Geographic information system; Forest management; Natural neighbor index Ciências Agrárias; Engenharia Florestal Sistema de informação geográfica; Manejo florestal; Índice do vizinho natural. |
Ano: 2016 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1111 |
| |
|
| |
|
|
Carnus , Jean-Michel; INRA, France; carnus@pierroton.inra.fr; Hengeveld, Geerten M.; Alterra, Wagenigen UR, Netherlands; geerten.hengeveld@wur.nl; Mason, Bill; Forest Research, Northern Research Station, Roslin, Midlothian, UK ; bill.mason@forestry.gsi.gov.uk. |
Adaptation of forest management practices in the context of rapid climatic and socioeconomic changes is a global concern. Stakeholders in the forest-based sector as well as policy makers need improved methods and tools to assess potential impacts of changes in management on sustainability indicators. In this special feature, we introduce a methodological framework for classification of forest management approaches in European forestry and explore how changes in forest management might affect the delivery of various ecosystem goods and services and appropriate sustainability indicators over time and space from local to continental scales. The complementary papers in this special feature explore different aspects of sustainability and risks in representative... |
Tipo: Peer-Reviewed Reports |
Palavras-chave: Ecosystem services; Forest management; Forest models; Indicators; Sustainability impact assessment. |
Ano: 2012 |
|
| |
|
|
Sixel,Ricardo Michael de Melo; Arthur Junior,José Carlos; Gonçalves,José Leonardo de Moraes; Alvares,Clayton Alcarde; Andrade,Gabriel Ramatis Pugliese; Azevedo,Antonio Carlos; Stahl,James; Moreira,Antônio Maurício. |
ABSTRACT The impact of intensive management practices on the sustainability of forest production depends on maintenance of soil fertility. The contribution of forest residues and nutrient cycling in this process is critical. A 16-year-old stand of Pinus taeda in a Cambissolo Húmico Alumínico léptico (Humic Endo-lithic Dystrudept) in the south of Brazil was studied. A total of 10 trees were sampled distributed in five diameter classes according to diameter at breast height. The biomass of the needles, twigs, bark, wood, and roots was measured for each tree. In addition to plant biomass, accumulated plant litter was sampled, and soil samples were taken at three increments based on sampling depth: 0.00-0.20, 0.20-0.40, 0.40-0.60, 0.60-1.00, 1.00-1.40,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil fertility; Nutrient cycling; Forest management. |
Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000501416 |
| |
|
|
RAMOS, L. B.; COSTA, T. C. e C. da. |
Nas operações para obter madeira serrada muitos são os métodos usados para desdobro da tora, que podem ser padrões de corte ou processos empíricos, usando a experiência dos operadores. Como usualmente o produtor vende a árvore em pé, com valores muito inferiores àqueles que serão obtidos após o processamento mecânico da madeira, foi desenvolvido o CalcMadeira, software com a finalidade de auxiliar o produtor a vender a arvore não em metros cúbicos, mas em função das peças serradas que podem ser obtidas a partir de árvores. Um dos modelos implementados é o padrão de corte radial, que consiste em dividir a tora em quadrantes, e calcular peças serradas próximas ao sentido do raio. Foram realizados testes com diferentes deslocamentos da medula em relação ao... |
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Software; Extração de madeira; Multiprodutos; Modelagem; Manejo florestal; Sawmill; Modeling; Madeira; Produto Florestal; Serraria; Forest management. |
Ano: 2021 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1135677 |
| |
|
| |
|
|
Gabriel, Vagner de Araujo; Vasconcelos, André Antonio; Lima, Elson Fernandes de; Cassola, Heloiza; Barretto, Klaus Duarte; Brito, Mônica Cabello de. |
In last decades, the increase of Eucalyptus plantations was relevant in Brazil, especially in the global scenario. Several studies showed that these cultures, especially those guaranteed by certification mechanisms, can bring social and environmental benefits. This paper presents data collected in the period 2002-2011, where we show richness data of plants, birds and mammals in eucalyptus plantation farms in Brazil. It is discussed the importance of these areas to biodiversity conservation, where have been recorded 1,320, 620 and 55 species of woody plants, birds and medium and large mammals, respectively. It was registered the occurrence of endangered plant species in the plantations understory: Araucaria angustifolia, Couratari asterotricha, Buchenavia... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forest management; Forest plantation; Fauna Conservação da Biodiversidade; Engenharia Florestal; Conservação de Áreas Silvestres Manejo florestal; Floresta plantada; Fauna. |
Ano: 2013 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/435 |
| |
Registros recuperados: 107 | |
|
|
|